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The Contracting States, with a view to applying between themselves the principle and the stipulations of Article 23 of the Covenant of the League of Nations with regard to the equitable treatment of commerce, undertake that their commercial relations shall not be hindered by excessive, unnecessary or arbitrary Customs or other similar formalities.
The Contracting States therefore undertake to revise, by all appropriate legislative or administrative measures, the provisions affecting Customs or other similar formalities which are prescribed by their laws or by rules, regulations or instructions issued by their administrative authorities, with a view to their simplification and adaptation, from time to time, to the needs of foreign trade and to the avoidance of all hindrance to such trade, except that which is absolutely necessary in order to safeguard the essential interests of the State.